示例如下:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
// Aa.cpp : Defines the entry point for the console application.
#include "stdafx.h"
#include <vector>
#include <map>
#include <iostream>
using namespace std;
int main( int argc, char * argv[])
{
printf ( "Hello World!\n" );
vector< int > a; //创建一个对象
a.push_back(1);
a.push_back(2);
a.push_back(3);
vector< int >::iterator iter;
for ( iter = a.begin(); iter != a.end(); ++iter ) //遍历和删除一个对象
{
if ( (*iter) == 2 )
{
a.erase(iter);
printf ( "del is item;" );
break ;
}
}
vector< int >* b = new vector< int >();
b->push_back(1);
b->push_back(2);
b->push_back(3);
vector< int >::iterator iterr;
for ( iterr = b->begin() ; iterr!= b->end() ; iterr++) //通过new 一个对象删除
{
if ( (*iterr) == 2 )
{
b->erase(iterr);
printf ( "del is new item" );
break ;
}
}
map< int , int > mapTest;
mapTest[0] = 1;
mapTest[1] = 2;
mapTest[2] = 3;
map< int , int >::iterator mapIter;
for ( mapIter = mapTest.begin() ; mapIter != mapTest.end() ; ++mapIter )
{
std::cout << mapIter->first<< "-----" <<mapIter->second<< std::endl;
}
system ( "pause" );
return 0;
}
|
以上就是小编为大家带来的浅谈c++ vector和map的遍历和删除对象全部内容了,希望大家多多支持服务器之家~